Built a quick and dirty thumb.

   / Built a quick and dirty thumb. #1  

aarolar

Platinum Member
Joined
Feb 20, 2016
Messages
663
Location
Augusta Ga
Tractor
Kubota MX4800
Built a simple little thumb to help clean up the pines in front of my house and other general use. To keep weight down I made it from 1/4 inch AR400, the weight of the thumb is 41lbs and the cylinder is 18lbs. I need a flow restrictor some kinda bad because it's super jumpy/snappy I'll run by the hydraulic supply store tomorrow and see if they have a orifice restrictor.

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   / Built a quick and dirty thumb. #3  
Nice job !
 
   / Built a quick and dirty thumb. #4  
Looks good. Can you elaborate on the pivot points on top of the bucket.
 
   / Built a quick and dirty thumb. #8  
Elaborate how sir?

The ears look to be something I could make but I don't know the name and or type of pivot pin nor do I understand the role of plate (I'm assuming) and nut on the end/outside of the ear.
 
   / Built a quick and dirty thumb. #10  
Yea, where did you get those offset pins.
 
 
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